%%MatrixMarket matrix coordinate real general
9 12 28                                           
1 6 1
1 9 1
1 11 1
2 3 1
2 6 1
2 7 1
2 8 1
2 10 1
2 12 1
3 3 1
3 5 1
3 8 1
3 11 1
4 3 2
4 5 1
4 9 1
5 8 1
5 10 1
5 12 1
6 4 1
7 2 1
7 4 1
8 1 1
8 2 1
8 4 1
9 1 1
9 2 1
9 7 1
